PDCCH CORESET#0 Configuration for Narrow-Band Resource Allocation
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Solution Overview
Problem
Existing PDCCH resource configurations in LTE/GSM-R systems with dedicated spectrum support are inadequate for narrow bandwidths, leading to inefficient resource utilization and suboptimal channel transmission performance.
Innovation Solution
A method and apparatus for configuring PDCCH resources by determining a candidate configuration set of CORESET#0, allowing for different configurations based on frequency bands and synchronization signals, and sending indication information to terminals for flexible resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional PDCCH resource configurations are used in narrow bandwidth systems, then system compatibility is maintained, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic PDCCH resource configuration by determining candidate configuration sets based on actual bandwidth conditions and sending indication information to select from multiple configuration options. This allows the system to adapt PDCCH parameters (such as frequency domain allocation, time domain allocation, and resource block allocation) dynamically according to the narrow bandwidth context, thereby improving resource utilization efficiency while maintaining system compatibility
Solution Approach 2:
The patent changes key PDCCH configuration parameters including frequency domain resource allocation, time domain resource allocation, and resource block allocation based on the determined candidate configuration set. By adjusting these parameters according to narrow bandwidth conditions, the system achieves better resource utilization without compromising overall system compatibility
2Reliability
If fixed PDCCH configurations are used, then configuration complexity is reduced, but channel transmission performance deteriorates
Solution Approach 1:
The patent performs preliminary determination of candidate configuration sets based on bandwidth conditions before actual PDCCH transmission. By pre-configuring multiple candidate sets with different parameter combinations and selecting the appropriate one based on actual conditions, the system improves channel transmission performance without requiring complex real-time adjustments during transmission
Solution Approach 2:
The patent implements a feedback mechanism by sending indication information to terminals about the selected PDCCH configuration. This allows terminals to correctly interpret and decode PDCCH messages according to the actual configuration used, ensuring reliable communication while maintaining manageable system complexity through structured configuration management
Data Source
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AI summary
Disclosed in the embodiments of the present application are a physical downlink control channel (PDCCH) resource configuration method and apparatus. The method comprises: determining a candidate configuration set of a control resource set CORESET# 0 corresponding to a PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and at least one configuration in the first configuration set is different from that in the second configuration set; and sending first indication information to a terminal device, wherein the first indication information is used for indicating a configuration of the CORESET# 0 from the candidate configuration set, Therefore, the configuration of the control resource set CORESET# 0 for bearing a common channel can be flexibly determined on the basis of a communication scenario, an actual transmission condition, etc., such that resource configuration is more rational, the resource utilization rate is effectively improved, the channel transmission performance is improved, and the reliability of communication transmission is ensured.